I'd watch her when you first bring her home to see if she does try to lick her incision. My KaCee didn't while at the vets (she was kept overnight) but after I brought her home, she started to bother it. KaCee weighed about 3.5pounds at the time of her spay and 0-3 months onsies from target fit her well. Wash and dry them first and they'll shrink a little bit. I didn't cut mine either. If you put them on so the front of the onsie is on her back, it will snap together on her back..put her tail so it sticks up between the snaps.
Definetly buy more than 1. I had a pack of 5 and that wasn't enough.
